Question 1 :
A roller of diameter 70 cm and length 2m is rolling on the ground What is the area covered by the roller in 50 revolutions?
Question 2 :
Find the circumference of the circle with the following radius : 10 cm
Question 3 :
A circular disc of radius $10 cm$ is divided into sectors with angles $120^o$ and $150^o$, then the ratio of the area of two sectors is
Question 4 :
If 'c' be the circumference and 'd' be the diameter then the value of$ \displaystyle \pi $ is equal to-<br>
Question 5 :
A rectangular sheet of acrylic is 50 cm by 25 cm . From it 60 circular buttons, each of diameter 2.8 cm have been cut out. The area of the remaining sheet is
Question 6 :
A cord in the form of square encloses the area 'S'$ \displaystyle cm^{2} $ If the same cord is bent into the form of a circle then the area of the circle is
Question 7 :
If the circumference of a circle is reduced by 50 % then the area will be reduced by
Question 8 :
What is the circumference of a circle whose radius is 8 cm?
Question 9 :
If an arc of a circle subtends an angle of<b></b>$ \displaystyle x^{\circ} $ at the centre then the length of the arc will be equal to - (Given radius of the circle=r)
Question 10 :
The sum of the circumference and diameter of a circle is $116 cm$. Find its radius.
Question 12 :
If radius of a circle is increased to twice its original length, how much will the area of the circle increase ?
Question 14 :
A rope by which a cow is tethered is in reased from 16m to 23m. How much additional ground does it have to graze now?
Question 15 :
The diameter of a circle is divided into n equal parts.On each part a semicircle is constructed. as n becomes very large, the sum of the lengths of the arcs of the semicircles approaches a length:
Question 16 :
The distance between the two parallel chords of length 8 cm and 6 cm in a circle of diameter 10 cm if the chords lic on the same side of the centre is
Question 17 :
The perimeter of a sector of a circle is $56$ cms and the area of the circle is $64\pi$ sq. cms  Find the area of sector.
Question 18 :
The radius of a wheel is $0.25 m$. How many rounds will it take to complete the distance of $11 km$?
Question 19 :
A cow is tied to a pole, fixed to the midpoint of a side of a square field of dimensions $40\ m\times 40\ m$, by means of $14\ m$ long rope. Find the area that the cow can graze.
Question 20 :
The area of a sector formed by two mutually perpendicular radii in $\odot \left( 0,5cm \right) $ is ............... ${cm}^{2}$.
Question 21 :
If a circle is divided into two equal parts, then equal part of the circle is called ________.
Question 24 :
The area of a circle is $24.64$. $\displaystyle m^{2}$ What is the circumference of the circle ?
Question 25 :
In a circle with radius $5.7\ cm$, the perimeter of a sector is $27.2\ cm$. Find the area of this sector.
Question 26 :
What is the minimum radius $(>1)$ of a circle whose circumference is an integer?
Question 27 :
If the area of a circle is $346.5 \displaystyle cm^{2}$. Its circumference is
Question 29 :
If the area and arc length of the sector of a circle are 60 $cm^2$ and 20 cm respectively, then the diameter of the circle is
Question 30 :
Circular dome is a 3D example of which kind of sector of the circle?
Question 31 :
If one side of a square is 2.4 m. Then what will be the area of the circle inscribed in the square?
Question 32 :
If the area of the circle be $ \displaystyle 154 cm^{2},$ then its radius is equal to:
Question 34 :
The diameter of a circle is $1$. Calculate the area of the circle.
Question 35 :
The perimeter of a sector of a circle is 37cm. If its radius is 7cm, then its arc length is
Question 36 :
The radius of a circular wheel is $1.75\ m$. The number of revolutions that it will make in covering $11\ kms$ is:
Question 38 :
The number of circular pipes with an inside diameter of $1$ cm which will carry the same amount of water as a pipe with an inside diameter of $6$ cm is:
Question 39 :
If the diameter of a circle is increased by 200% then its area is increased by<br>
Question 40 :
A square is inscribed in a circle of radius $7\: cm$. Find area of the square.
Question 41 :
Area of a sector having radius 12 cm and arc length 21 cm is
Question 42 :
The area of a sector is 1/18th of the area of the circle The sectorial angle is
Question 43 :
Area of a circle with diameter 'm' radius 'n' and circumference 'p' is
Question 44 :
State true or false:<br/>Sector is the region between the chord and its corresponding arc.
Question 45 :
What is the area of the sector of a circle, whose radius is $6\ m$ when the angle at the centre is $42^{\circ}$?
Question 46 :
A horse is tied to a pole fixed at one corner of a $50 m \times 50 m$ square field of grass by means of a $20 m$ long rope. What is the area to the nearest whole number of that part of the field which the horse can graze?
Question 47 :
A circular disc of radius 10 cm is divided into sectors with angles $ \displaystyle 120^{\circ}   $ and  $ \displaystyle 150^{\circ}   $ then  the ratio of the areas of two sectors is
Question 48 :
The area of two circles are in the ratio $25 : 36$. Then the ratio of their circumference is _________.
Question 50 :
The radius of a circle whose area is equal to the sum of the areas of two circles where radii are 5 cm and 12 cm is
